. >> they are breaking the law. if i ran a red light, i would be pulled over. right? they are shutting thousand city. -- shutting down had city. >> reporter: one drive frustrated, sped off. others couldn't do anything but wait. many pedestrians and commuters felt the same frustration. the pedestrians clanked -- complained. >> they don't respect anybody. >> reporter: these people also upset. they couldn't go home on a friday night. >> more than 30 minutes now. crazy. >> 30 minutes. out. we are still waiting here. annoyed. irritated because it is now effecting, you know, the wrong people. >> reporter: critical mass started to see the momentum slow down around 9:00 p.m. when bicyclist stopped at market and 7th street to watch this performance. >> performance in san francisco, everybody stops. even stopped critical mass. >> reporter: it was a very peaceful event. san francisco police did not make any arrests. live in san francisco, da lin, kron 4 news. >> our team coverage continues are kron 4's justin. >> reporter: critical mass celebrated its 20th anniversary as thousan